The New Source Review (NSR) Program of the Clean Air Act (CAA) requires large new plants (in the parlance of the Act “major” “stationary sources”) to go through an extensive, time consuming and expensive review and permitting process prior to construction. Such sources are required through these permits, among other requirements, to install the best available control technologies (BACT) to reduce levels of specific regulated pollutants. The NSR program also applies to existing facilities if they are modified in substantial ways and if, as a result, emissions increase by significant amounts (these are known as “major modifications”). Continue Reading Will the Fifth Circuit Put Another Nail in the Coffin of NSR Enforcement for Ancient Projects?